Home / 13,251.15-19,874.58-3,389.91

Finding the Fourth Proportional to 13,251.15, 19,874.58 and 3,389.91

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Solution

The fourth proportional to 13,251.15, 19,874.58 and 3,389.91 is: 5,084.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.15 : 19,874.58 = 3,389.91 : x
  2. Step 2: Convert to fraction form
    13,251.15/19,874.58 = 3,389.91/x
  3. Step 3: Cross multiply
    13,251.15x = 19,874.58 × 3,389.91
  4. Step 4: Simplify right side
    13,251.15x = 67,373,037.49
  5. Step 5: Solve for x
    x = 67,373,037.49/13,251.15
  6. Step 6: Final answer
    x = 5,084.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.